1409897977 has 2 divisors, whose sum is σ = 1409897978. Its totient is φ = 1409897976.

The previous prime is 1409897971. The next prime is 1409898013. The reversal of 1409897977 is 7797989041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 901440576 + 508457401 = 30024^2 + 22549^2 .

It is a cyclic number.

It is not a de Polignac number, because 1409897977 - 2³ = 1409897969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1409897971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704948988 + 704948989.

It is an arithmetic number, because the mean of its divisors is an integer number (704948989).

Almost surely, 2^1409897977 is an apocalyptic number.

It is an amenable number.

1409897977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1409897977 is an equidigital number, since it uses as much as digits as its factorization.

1409897977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8001504, while the sum is 61.

The square root of 1409897977 is about 37548.6081899183. The cubic root of 1409897977 is about 1121.3191241516.

The spelling of 1409897977 in words is "one billion, four hundred nine million, eight hundred ninety-seven thousand, nine hundred seventy-seven".